Egypt, when restored, shall be so circumscribed in power that it shall be no longer an object of confidence to Israel, as formerly; for example, as when, relying on it, Israel broke faith with Nebuchadnezzar (Eze 17:13, Eze 17:15, Eze 17:16).
which bringeth their iniquity to remembrance, when they shall look after them - rather, “while they (the Israelites) look to (or, turn after) them” [Henderson]. Israel’s looking to Egypt, rather than to God, causes their iniquity (unfaithfulness to the covenant) to be remembered by God.